reaction
noun
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doing something in opposition to another way of doing it that you don't like“This style of painting was a reaction against cubism.”
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a bodily process occurring due to the effect of some antecedent stimulus or agent“a bad reaction to the medicine”response
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an idea evoked by some experience“Their reaction to the news was to start planning what to do.”
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extreme conservatism in political or social matters“the forces of reaction carried the election”
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a response that reveals a person's feelings or attitude“My reaction wasn't what it should have been, but I felt like I was put in a bad situation.”
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(mechanics) the equal and opposite force that is produced when any force is applied to a body“every action has an equal and opposite reaction”
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(chemistry) a process in which one or more substances are changed into others“there was a chemical reaction of the lime with the ground water”chemical reaction